Lithium batteries are allowed on planes, but there are certain restrictions and safety regulations in place due to the potential fire hazards associated with these batteries. The primary concern is the risk of thermal runaway, which is a self-sustaining reaction that can lead to a fire or explosion.

New energy batteries refer to devices capable of storing and releasing a large amount of electrical energy, used in various fields such as electric vehicles, energy storage systems, and renewable energy generation. Here are some main types of new energy batteries and their future development trends: